It’s no secret that aging slows down a lot of things, including metabolism, general thought processes and the bounce back from a hangover. The Wall Street Journal takes a look at the data and attributes much of the slacking to body composition changes. Older bodies hold less water increasing the occurrence of dehydration, and older livers metabolize alcohol more slowly than young livers. What’s more interesting is that the Centers for Disease Control and Prevention defines a “regular” drinker as someone who consumes “at least 12 drinks in the previous year,” and that number is only 52% of people from the ages of 45 to 64. This means there is an entire generation of people not drinking and that makes us feel sad. [The Wall Street Journal]